5htp 400mg capsules
Skip itA small market ($49K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible15.0%search→purchase rate — share of searches ending in a sale
Avg price
Great$22.02avg listing price — sweet spot $15–$100
Price range
Great$14.06–$36.52cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good73%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Bad4,932.31avg incumbent reviews — the moat a new listing must climb
Competition
Bad73%top-5 click share — a locked-up shelf
Growth
Bad-11.6%90-day search growth — must beat 0% to launch
Market size
Bad$49K$49K/yr · 15K searches
According to Flapen's Amazon United States niche tracking, 5htp 400mg capsules is a $49K/yr Amazon United States market (15K searches/yr). The top 5 brands hold 73% of demand. Verdict: Skip it — 49/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
5htp 400mg capsules market data
- Units sold / yr
- 2K–2K
- avg 100–250/product
- Revenue / yr
- $33K–$44K
- units × avg price
- Conversion rate
- 15.0%
- Avg BSR
- #78
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 85%
- Out of stock
- 0.0%
- Avg brand age
- 95 months
- Avg seller age
- 166 days
Competition & brand share
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 falling
Sellers
30
Top-5 brand share
73%
Top 20: 97%
Top-5 click share
73%
Top 20: 100%
Open market
20%
- Horbäach38%
- Clean Nutraceuticals12%
- BulkSupplements9%
- Triquetra Health8%
- Nutricost6%
- DR. EMIL NUTRITION6%
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — -11.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top 5htp 400mg capsules products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Horbach 5HTP 400mg Capsules | 120 Count | Extra Strength Supplement
Horbäach$18.524.4★1,815 rev
Clean Nutraceuticals GABA 750mg 5 HTP 200mg L Tryptophan 500mg L Theanine 200mg Ashwagandha SAM-e L-Glycine - Mood Support Vitamins for Women and Men with L-Tyrosine 5-HTP (5-Hydroxytryptophan)
Clean Nutraceuticals$28.044.4★2,665 rev
BulkSupplements.com 5-HTP Capsules - 5-Hydroxytryptophan Mood Support Supplement - Gluten Free 2 Capsules per Serving (400mg) 360 Capsules (Pack of 1)
BulkSupplements$24.314.4★104 rev
Organic 5-HTP - 200 mg | 99% 5HTP Concentration Plus Cofactor Vitamin B6 & Lions Mane | Water Extracted from Organic Griffonia Seeds | Supports Mood Cognition & Sleep (60 Capsules | 30 Servings)
Triquetra Health$23.744.5★1,320 rev
Nutricost 5-HTP 200mg 120 Vegetarian Capsules (5-Hydroxytryptophan)
Nutricost$16.794.5★3,818 rev
Newest
by launch date
5htp 400mg Capsules Per Vegetarian Pill Extra-Strength Max Dose 5 htp Supplement. Sleep Positive Outlook Calmness Cognition. 1 Pill is 400mg 5-htp Supplement and 2 Pills is 800mg htp5
BioWisdom Nutraceuticals$16.7622 rev
Micro Ingredients 5-HTP 200mg 240 Softgels | Extra Strength 5-Hydroxytryptophan Complex with GABA L-Theanine Vitamin B6 | Highly Bioavailable with Hemp Seed Oil Carrier | Non-GMO
Micro Ingredients$21.70126 rev
BulkSupplements.com 5-HTP Capsules - 5-Hydroxytryptophan Mood Support Supplement - Gluten Free 2 Capsules per Serving (400mg) 360 Capsules (Pack of 1)
BulkSupplements$24.31104 rev
DR. EMIL NUTRITION 200 MG 5-HTP Plus with SAM-e for Mood Stress and Sleep - 5HTP Supplement with Vitamin B6-120 Vegan Capsules 60 Servings
DR. EMIL NUTRITION$36.5224,587 rev
Clean Nutraceuticals GABA 750mg 5 HTP 200mg L Tryptophan 500mg L Theanine 200mg Ashwagandha SAM-e L-Glycine - Mood Support Vitamins for Women and Men with L-Tyrosine 5-HTP (5-Hydroxytryptophan)
Clean Nutraceuticals$28.042,665 rev
Trending
90-day click momentum5htp 400mg Capsules Per Vegetarian Pill Extra-Strength Max Dose 5 htp Supplement. Sleep Positive Outlook Calmness Cognition. 1 Pill is 400mg 5-htp Supplement and 2 Pills is 800mg htp5
BioWisdom Nutraceuticals$16.764.5★
Micro Ingredients 5-HTP 200mg 240 Softgels | Extra Strength 5-Hydroxytryptophan Complex with GABA L-Theanine Vitamin B6 | Highly Bioavailable with Hemp Seed Oil Carrier | Non-GMO
Micro Ingredients$21.704.4★
DR. EMIL NUTRITION 200 MG 5-HTP Plus with SAM-e for Mood Stress and Sleep - 5HTP Supplement with Vitamin B6-120 Vegan Capsules 60 Servings
DR. EMIL NUTRITION$36.524.3★
Fito Medics 5-HTP Supplement 400 mg 120 Capsules Mood & Relaxation Support Non-GMO Ingredients
FITO MEDIC'S$14.064.3★
Clean Nutraceuticals GABA 750mg 5 HTP 200mg L Tryptophan 500mg L Theanine 200mg Ashwagandha SAM-e L-Glycine - Mood Support Vitamins for Women and Men with L-Tyrosine 5-HTP (5-Hydroxytryptophan)
Clean Nutraceuticals$28.044.4★
What buyers say about 5htp 400mg capsules
What buyers praise and complain about, mined from review topics.What buyers love
“helps me sleep”
“Relief of anxiety”
“The capsules feel well made and consistent, which speaks to overall quality”
“Effective”
“I have been impressed with my increased ability to focus”
“I love NOW vitamins and supplements”
“reasonable price”
“Excellent product; you can feel it helping right from the very first dose”
“I believe I do feel a slightly calming affects”
“As it was suggested by some web sites”
What buyers complain about
“Made me nauseated”
“didn't help me sleep at all”
“SEVERE STOMACH PAIN”
“Dose too high”
“Not very effective”
“BIG waste of money”
“Be careful of ingredients”
“definitely anxiety inducing”
“Induces nausea”
“Smells terrible”
Top return reasons
Common questions
- Is 5htp 400mg capsules profitable to sell on Amazon United States?
- The niche generates $49K/yr across 13 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -11.6%. Flapen's verdict: Skip it (49/100).
- How competitive is the 5htp 400mg capsules niche?
- 11 brands and 30 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 73% of demand.
- What do buyers complain about in 5htp 400mg capsules?
- Top complaints mined from reviews: Side Effects, Sleep Quality, Acid Regulator/Stomach Ache Relief. The return rate is 0.0%.
- When does demand for 5htp 400mg capsules peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the 5htp 400mg capsules niche?
- Listings span $14.06–$36.52; the average listing price is $22.02 (sweet spot $15–$100). The average incumbent carries 4,932 reviews — the moat a new listing must climb.